JP2004230118A - Ultrasonic gingival sulcus laveur - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brushless ultrasonic gingival sulcus laveur for ultrasonically washing the inside of gingival sulcus which a toothbrush does not reach. <P>SOLUTION: This ultrasonic gingival sulcus laveur constituted by opening the front of an ultrasonic emission surface of an ultrasonic oscillator with directivity and installing a guide cover in front of a side face, carries out ultrasonic irradiation into water interposed between an ultrasonic irradiated part and the ultrasonic gingival sulcus laveur. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to an ultrasonic mouth washer used in an oral cavity filled with water, and directly irradiates ultrasonic waves having directivity toward a gingival sulcus, without using a brush. TECHNICAL FIELD The present invention relates to an ultrasonic gingival sulcus cleaner for cleaning a sulcus.
[0002]
[Prior art]
Conventional tooth brushing methods using a toothbrush require only a single tooth, such as a tooth surface, a fissure, a cervical part, an adjacent part, and a periodontal tissue state. It is said that there are several types of brushing methods, and toothbrushes of various shapes and properties have been developed.However, a sufficient cleaning effect on the tooth surface as well as the gingival sulcus by using only the mechanical cleaning action of the brush is considerable. It needed effort and skill.
Furthermore, as the aging society progresses, the importance of cleaning and cleaning the inside of the gingival sulcus and the root surface facing the gingival sulcus is pointed out from the viewpoint of prevention and treatment of periodontal tissue diseases as well as caries. However, there was a problem that the brush mainly having a mechanical cleaning action could not reach the deep gingival sulcus.
In such a situation, a toothbrush using an ultrasonic vibrator has been developed, and it has become clear that not only the crown but also the gingival sulcus, which is considered to be difficult to reach, can be cleaned to some extent.
[0003]
Such an ultrasonic toothbrush is provided with an ultrasonic vibrator at the base of the toothbrush neck to vibrate the brush and mechanically clean the tooth surface, and an ultrasonic vibrator at the base of the toothbrush flocked part. The brush was vibrated to mechanically clean the tooth surface, and the brush was radiated with ultrasonic waves from the back of the brush. Both types perform reciprocating motion of 17 KHz to 40 KHz, and the mechanical cleaning effect of the brush on the tooth surface itself is not much different.
On the other hand, it was revealed that there was a large difference between the two in the effect of removing bacteria in the gingival sulcus, which is considered to be unable to reach the tip of the brush, due to the difference in cleaning ability by ultrasonic irradiation. It is possible to think that there is.
However, conventionally, even if the ultrasonic toothbrush is provided with an ultrasonic vibrator in the brush flocked portion, the mechanical cleaning action is mainly performed by the vibration of the brush, and the radiated ultrasonic wave is attenuated and the gingival tissue surface is not affected. The main purpose was not to prevent reflection and exert a direct cleaning action of ultrasonic waves in the gingival sulcus.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to develop an ultrasonic-type gingival sulcus cleaner for the purpose of directly cleaning the deep gingival sulcus, which is not affected by the mechanical cleaning action of the brush, exclusively using the property of ultrasonic waves. Is what you do.
[0005]
[Means for Solving the Problems]
The present invention is directed to a means for irradiating ultrasonic waves to a gingival sulcus in a mouth filled with water in a directional manner, and exerting a cleaning action in the gingival sulcus.
In order for ultrasonic waves irradiated in the oral cavity to enter the gingival tissue, it is necessary to fill water close to the gingival tissue with an ultrasonic oscillator and fill it with water whose value is close to the gingival tissue, except for the air layer whose intrinsic acoustic impedance value is significantly different from that of the gingival tissue. Is valid.
Therefore, the present invention does not use a brush that easily contains an air layer, and uses ultrasonic irradiation in a closed state containing water in the oral cavity as a means of use. In addition to using one of the following methods to make the oscillator, a means such as installing a guide cover in front of the side surface of the ultrasonic oscillator is used.
a. An acoustic lens is installed on the upper surface of one side of the planar ultrasonic transducer to form a focal point forming ultrasonic oscillator.
b. A reflector is provided on the ultrasonic vibrator to form a focal point forming ultrasonic oscillator.
c. The back surface of the concave ultrasonic transducer is backed to form a focus forming ultrasonic oscillator.
c. A water bag filled with water in a plastic bag is installed on the front side of one side of the ultrasonic vibrator to make a direct transmission type ultrasonic oscillator.
d. A paste-containing bag is installed on the front surface of one side of the ultrasonic vibrator to form a direct transmission type ultrasonic oscillator.
e. A directional ultrasonic oscillator is obtained by opening the front oscillation surface of a planar ultrasonic transducer having a large frequency of 1 MHz or more and backing the other surface.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings based on an example.
a. FIG. 1 is a diagram showing the electric power supply of the present invention showing that a battery power supply, an ultrasonic vibrator control circuit, a switch are installed in a grasping unit, a lead wire is installed in a neck unit, and an ultrasonic oscillator serving as an ultrasonic oscillator is installed in a head unit. It is a basic block diagram of a circuit part.
b. Fig. 2 shows a directional ultrasonic oscillator with a line focus acoustic lens installed on the front side of one side of an ultrasonic vibrator to form a head with a guide cover on the front side and a neck with lead wires embedded. FIG. 3 is a perspective view of the present embodiment including a battery, a switch, and a grasping unit in which an ultrasonic transducer control circuit is installed.
c. FIG. 3 shows the present embodiment in which a directional ultrasonic oscillator for forming a linear focus by installing a line focus acoustic lens on one side of a front surface of a planar oscillator having a rectangular oscillation surface and a guide cover on the side surface. FIG. 3 is a cross-sectional view of the head part of FIG.
The ultrasonic gingival sulcus cleaner according to claim 1, which is configured as described above.
[0007]
【The invention's effect】
The effects of the present invention configured as described above will be described.
a. Because it is used in the water in the oral cavity without installing a brush in front of the oscillation surface of the ultrasonic oscillator, it is possible to suppress ultrasonic attenuation and reflection on the gingival tissue surface and irradiate ultrasonic waves efficiently into the gingival sulcus. it can.
b. Using one of an acoustic lens, a reflector, a water bag, a bag with paste, a concave oscillator, a high frequency oscillator, etc., irradiates ultrasonic waves in a directional manner, and increases the ultrasonic density in the gingival sulcus to clean. The effect can be enhanced.
c. In this embodiment, a line focus acoustic lens is provided on the front surface of one side of the planar ultrasonic transducer to form a directional ultrasonic oscillator, and the ultrasonic wave is converged in a band near the focal point of the guide cover open end. At the same time, the gingival sulcus of a plurality of teeth can be efficiently cleaned.
d. The radiation pressure generated by the ultrasonic oscillation and the linear flow pressure of the water flowing from the hole on the side of the guide cover toward the open end cause the peristaltic motion of the microlymphatic vessels in the periodontal tissue and also directly. It promotes lymphatic flow, drains metabolites and microbial components in the gingival tissue in a lymphatic manner, and can reduce edema of the periodontal tissue and increase tissue pressure.
e. In the basic use method of the present invention using water in the oral cavity, the air layer does not intervene between the ultrasonic oscillator and the gingival sulcus, the ρc value between water and the gingival tissue is close, Ultrasonic waves irradiated into the water in the oral cavity reach the gingival sulcus without being reflected by the gingival tissue because of their properties such as transmitting ultrasonic waves without attenuating them. At the same time, a linear flow of water is generated by the irradiation pressure, and the gingival sulcus can be efficiently washed away.
f. In the mouth washing of the care recipient, it is difficult to use in the closed state filled with water in the mouth from the viewpoint of prevention of aspiration, but in the embodiment in which a water bag or a bag containing paste is installed, By applying a small amount of water to bring the bag into close contact with the irradiation application site, the application site can be washed.
g. In addition to the inside of the gingival sulcus that the brush does not reach, the cleaning action can be exerted on the fissures, adjacent surfaces, and tooth surfaces around the bracket where the brush easily passes.
h. By using in combination with a plaque swelling agent, the tooth surface can be effectively cleaned.
i. In addition to a large cavitation effect in the frequency band of 20 KHz to 40 KHz, the effect of increasing the generation of fluoroapatite when a high-temperature, high-pressure environment provided in a microscopic range is exerted in an oral cavity containing a fluorine-containing mouthwash, Can be expected.
j. Ultrasound has the property of penetrating gingival tissue around implant-implanted sites where there is no biological defense mechanism, and the implant body has the property of reflecting ultrasound. Can be fully exhibited.
In addition, since the ultrasonic waves are absorbed by the bone tissue and the temperature of the bone tissue increases, an effect of massaging the bone tissue is expected.
k. The guide cover is located at the open end of the guide cover near the focal point, making it easy to locate the irradiated area near the focal point. The ultrasonic irradiation angle can be guided.
Further, by making the open end surface of the guide cover narrower than the oscillation surface of the ultrasonic vibrator, the radiation pressure can be converged and the straight flow of water can be promoted.
[Brief description of the drawings]
FIG. 1 is a basic configuration diagram of the present invention showing an arrangement of an electric circuit.
FIG. 2 is a perspective view of the present embodiment.
FIG. 3 is a cross-sectional view of a head unit according to the embodiment.
[Explanation of symbols]
1. 1. Ultrasonic transducer Lead wire3. Switch 4, battery 5. 5. Ultrasonic transducer control circuit Head part 7. Hole 8. Neck 9. Grasping unit 10. 10. Line focus acoustic lens Rubber sheet 12. Resin guide cover

Claims (1)

An ultrasonic gingival sulcus cleaner characterized by opening the front of the oscillating surface of a directional ultrasonic oscillator for underwater irradiation connected to an ultrasonic vibrator control circuit and installing a guide cover on the front of the side.

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